Hitachi TM3000 Instruction Manual page 263

Code Error Message
1736 It is time to maintain the
Diaphragm Pump.
It is recommended to replace it
with a new one.
1800 Main Power Switch is off, or the
USB cable is not connected.
Countermeasure
This message appears when the diaphragm
pump run time has reached a specified limit (720
hours).
Click the [OK] button to dismiss the message.
This message appears when the power supply
for the SEM main unit is OFF or a
communication error is detected due to an
unplugged USB cable.
Click the [OK] button to dismiss the message.
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